Buoyant advertising straw



FIG. 1 is a front elevational view of a buoyant advertising straw showing our new design; the broken line showing of a bottle is for illustrative purposes only;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof. 

The ornamental design for a buoyant advertising straw, as shown and described. 